400 Sudoku for adults: Hard Sudoku 9x9

by robert salt

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1. 400 Hard Sudoku puzzles for hours of enjoyment.

2. All of the puzzles are large enough to be comfortably completed.

3. It is aimed toward the advanced players and can make us smarter.

4. Easy-to-read format.

If you are the kind of person who doesn't give up easily, then this Sudoku Book of Hard Sudoku puzzles is for you. The puzzles...

• Format: Paperback
• Language: English
• ISBN: B08DBY32VJ
• ISBN13: 9798667869122
• Release Date: July 2020
• Publisher: Independently Published
• Length: 232 Pages
• Weight: 0.70 lbs.
• Dimensions: 0.5" x 6.0" x 9.0"